I first noticed it when I saw I was getting traffic from a CBC article I had commented on. It turns out CBC is using services from Technorati for pingback-like features. It scours the blogs for links to CBC.ca news pieces, and links to those blogs in the sidebar. The Blogwatch page finds the most blogged about articles.
Though some have expressed concern that this will just elevate pop culture articles above important news pieces, I still like the idea. It provides direct, relevant links to the blogosphere automatically, and without sacrificing editorial quality.
I still hate your homepage though.